public class Test {
    public static void main(String[] args) {
        long a = 89000L;
        long b = 85962;
    }
    public static void main2(String[] args) {
        float a = 11.0F;
        float b = 12.0f;
    }
    public static void main1(String[] args) {
        byte a = 1;
        byte b = 2;
        String str1 = "hello";
        String str2 = "world";
        System.out.println(a + b);
        System.out.println(a);
        System.out.println(str1);
        System.out.println(str1 + str2);
        System.out.println(str1 + a + b);
        System.out.println(a + b + str1);
    }
}